An HIV/AIDS activist since his diagnosis more than 20 years ago, Nelson Vergel is also an advocate for regular exercise and good nutrition. After all these years, Nelson remains dedicated to helping people with HIV. He runs a few Web sites and discussion groups. He also has a full schedule of talks around the country. Originally from Venezuela, he has been living in Houston, Texas, almost as long as he's known he's HIV positive. Among Nelson Vergel's top tips for surviving HIV/AIDS: Stay informed and connect with others.